WuHan Piezohannas Tech.Co .,Ltd is a manufactuer of piezoelectric ceramics ,ultrasonic transducers and some other ultrasonic deivce with strong technology force.With a quality management system and research & development sector,our products are extensively used in most applications.

ceramic disc manufacturers

piezo disc vibration sensor

piezo electric ceramic vibrator

Standard Size of Piezo Discs:

range of piezo disc to produce:

Diameter: 2mm-120mmThickness:0.1mm-30mm

Size(diameter*thickness)

Resonant frequency

coupling coefficient Kr

Resonant impedance Zm

Static capacitance Cs

2.5 mmx 5mm

40KHz

12pF ± 10%

3mm X 0.4mm

675 KHz±5 %

70%±3%

37Ω

430pF±15%

5mm X 0.2mm

445K±5KHz

70%±3%

≤8.6 Ω

1450pF±5%

5mm X 0.4mm

450 KHz±10 KHz

1050pF±15%

5mm x 10mm

51.9KHz

17.38 pF± 10%

6.35mmX0.7mm

3 MHz±5 %

6.35 mm x 16mm

35.5KHz

30.9pF ± 10%

7mmx 0.2mm

300 KHz±10 KHz

≥55%

≤10.0 Ω

3000pF±15%

7mm x 0.3mm

300 KHz±10 KHz

≥55%

≤20 Ω

1600pF±15%

7mm x 0.5mm

300 KHz±10 KHz

55%

≤20 Ω

1400pF±15%

8mm x 1mm

2.0±5%

≥43

0.65

530±10%

8mm x 2mm

1.0 ±5%

≥43

0.65

265±10%

9mm x 0.5mm

4.25 MHz ± 4%

≤1.4 Ω

1400pF±20%

10mm x 0.2mm

212 KHz ± 3%

≥58%

6000pF±20%

10mmx 0.4mm

5MHz ± 5%

≥48%

≤0.5 Ω

2100pF±15%

10mm x 0.1mm

20 MHz ± 2%

10.5nF ± 15%

10mm x1mm

199KHz±5%

≥73%

≤19 Ω

1400pF±20%

10mm x 2mm

1 MHz±5%

≥38%

≤15 Ω

450pF±15%

10mm x 2mm

215 KHz±5 KHz

≥60%

≤6 Ω

450pF±15%

10mm x 3mm

215 KHz±5 KHz

≥60%

≤9 Ω

310pF±15%

12mm x 0.6mm

3.4MHz±5%

≤6 Ω

2.5nF ±30%

15mm x 0.2mm

140KHz ± 3%

≥58%

≤4.0 Ω

13500pF±20%

15mm x 0.7mm

3MHz ±50 KHz

≥58%

≤6 Ω

5700pF±15%

15mm x 0.9mm

2.2 MHz±50 KHz

≥75%

≤11 Ω

3481pF±15%

15mmx1.2mm

1.7 MHz ± 4%

≥48%

≤5.3 Ω

2418pF±10%

15mm x 2.1mm

1 MHz±3 %

≥39%

≤7.6 Ω

900pF±15%

16mmx 0.25mm

7 MHz±5%

16mmx 0.4mm

5.0±5%

≥45

≤5Ω

5400±15%

16mmx1mm

2.0 ±5%

≥45

0.65Ω

2200±10%

19mm x 0.3mm

6.9 MHz±50 KHz

≤1 Ω

12000pF± 15%

19mm x 1mm

2.07MHz±50 KHz

≥39%

≤2 Ω

4000pF ± 15%

19mm x 2mm

1.04 MHz±50

≤3 Ω

1800pF ± 15%

20mmx 0.2mm

106KHz ± 3%

≥58%

≤3.0 Ω

23500pF±20%

20mm x 0.4mm

5 MHz±100 KHz

≤0.48 Ω

3800pF±20%

20mm x 0.7mm

3MHz ±50 KHz

≥58%

≤6 Ω

5700pF±15%

20mm x 0.8mm

2.5MH±100 KHz

20mmx1mm

2.05 MHz ± 3%

≥51%

≤0.31 Ω

3543pF±10%

20mm x 2.1mm

1MHz ±50 KHz

≥40%

≤4 Ω

2000pF±15%

20mm x 2.7mm

745 KHz±5 KHz

≥51%

≤2.7 Ω

1300pF±5%

20mmx3mm

690 KHz ± 3%

≥45%

≤3.6 Ω

1265pF±10%

20mmx8mm

255 KHz ± 1%

≥37%

≤10.4 Ω

483pF±10%

22mmX 0.25mm

92KHz±5%

65%

1.80 Ω

65nF ±10%

25mmx 0.2mm

85KHz ± 3%

≥64.90%

≤1.90 Ω

35nF±20%

25mm x 0.7mm

3 MHz±100 KHz

≥40%

≤1 Ω

8600pF±20%

25mm x 1.4mm

1.5MHz ± 5%

≥40%

≤1.5 Ω

1900pF±15%

25mm x 2.1mm

1MHz ±50 KHz

≥58%

≤4 Ω

2800pF±15%

25mm x 8.5mm

235 KHz±2%

≥58%

≤45 Ω

645pF±14%

28mmx 0.7mm

3MHz±100 KHz

≥40%

≤1 Ω

11200pF±15%

28mm x 2.1mm

1 MHz±50 KHz

≤8 Ω

3800pF±20%

30mm x 1mm

72 KHz±5%

34%

≤5.2 Ω

11 nF±20%

30mm x2.1mm

1 MHz±50 KHz

≥45

≤1 Ω

4400pF±15%

30mm×3.0mm

66.7

≥45

≤3Ω

2730±12.5%

30mm x 4.2mm

500 KHz±5 KHz

≥44%

≤1.9 Ω

2900pF±15%

30mm×5.5mm

75KHz

58

1300pF

30mm×6.2mm

75KHz

58

1200pF

31.5mmX4.2mm

500 KHz±10KHz

48.50

≤7.6 Ω

3800pF±20%

32mm×5mm

70KHz

58

1700pF

35mm X 12mm

190 KHz±5KHz

≤27.7 Ω

830pF±20%

35mm x 3mm

63KHz

≥45

≤3Ω

3100±12.5%

35mm x 4mm

55.6 KHz±5%

76%

≤15.7 Ω

7069 pF±20%

35mm×6.2mm

63KHz

58

1600pF

38mm x 4.1mm

500 KHz±5 KHz

≥44%

≤1.9 Ω

2900pF±15%

38mmx6.5mm

59.9

≥45

≤3Ω

1580±12.5%

40mmx 2mm

1±5%

≥45

0.65

7200pF±10

40mm×6.2mm

55

58

2200

43mmx 10.5mm

200KH±10 KHz

≥40%

≤10 Ω

1700pF±15%

45mmx3.0mm

50.0

≥45

≤3Ω

5100±12.5%

50mmX 0.4mm

41 KHz±1 KHz

71%±3%

1.3Ω

108nF±15%

50mm X 2.1mm

1.00 MHz ±50

≥60%

≤8 Ω

10000pF±20%

50mm x 2.5mm

44 KHz±3 KHz

≥60%

≤10 Ω

7400pF±15%

50mm x 3mm

44 KHz±3 KHz

≥60%

≤8 Ω

7200pF±15%

50mmx5.0mm

46.0

≥45

≤3Ω

4150pF±12.5%

60mm x 5mm

420 KHz±2%

≥58%

≤45 Ω

5100pF±14%

60mm x 2mm

1.0

≥45%

≤3Ω

14500±15%

7mmx 0.4mm

5MHz ± 5%

≥48%

≤0.5 Ω

2100pF±15%

85mmx 6mm

350 KHz ±2 %

≥48.81%

≤0.49 Ω

10.30nF±15%

PZT Material:

Piezo Hannas provides a wide selection of piezoelectric ceramic materials based on lead zirconate titanate (PZT) and lead-free piezo ceramics. The designations of "soft" and "hard" piezo ceramics refer to the mobility of the dipoles or domains and hence also to the polarization and depolarization behavior. PZT 4 and PZT 8 belongs to hard material ,PZT 5 is soft material,PZT piezoelectric ceramics are prepared by sintering zirconium, titanium and lead oxides.which has prominent dielectric, piezoelectric and ferroelectric properties.

"soft" piezo ceramics are engineered with high sensitivities and high electromechanical coupling coefficient.From materials to product development to volume manufacturing.which is mainly used for high sensitivity transducers, flowmeter transducers,vibration sensors and accelerometer.“hard” piezo ceramics are engineered with highly dense microstructures with improved electrical and mechanical properties.Hard materials provide more than just low dielectric and mechanical losses,which is mainly used for therapeutic ultrasound, HIFU,Sonar,cleaning and welding transducer.

PZT-4 is recommended for high power acoustic radiating transducers because of Its high resistance to depolarization and low dielectrIc losses under high electric drive. Its high resistance to depolarization under mechanical stress makes it suitable for use in deep-submersion acoustic transducers and as the active element in electrical power generating systems.

PZT-5A is recommended for hydrophones or instrument applications because of its high resistivity at elevated temperatures, high sensitivity, and high time stability.

PZT-5H has even higher sensitivity and permittivity than PZT-5A, and is in most other respects similar to PZT-5A. Its markedly lower Curie point, however, limits the working temperature range and leads to lower temperature stability. PZT-8 is similar to PZT-4, but has even lower dielectricand mechanical losses under high electric drive.It is recommended for applications requiring higher power handling capability than is suitable for PZT-4.

PZT-8 is similar to PZT-4, but has even lower dielectricand mechanical losses under high electric drive.It is recommended for applications requiring higher power handling capability than is suitable for PZT-4.